<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<h1>登录页面</h1>
<div>
    <input type="text" placeholder="用户名" v-model="user.username">
    <input type="password" placeholder="密码" v-model="user.password"><br>
    记住用户名和密码<input type="checkbox" v-model="user.rem">
    <input type="button" value="登录" @click="login()">
</div>


<script src="https://cdn.staticfile.org/vue/2.2.2/vue.min.js"></script>
<script src="https://cdn.bootcdn.net/ajax/libs/axios/0.21.1/axios.min.js"></script>

<script>
    let v=new Vue({
        el:"body>div",
        data:{
            user:{
                username:"",
                password:"",
                rem:false
            }
        },
        methods: {
            login(){
                axios.post("/login",v.user).then(function (response) {
                    if (response.data==1){
                        alert("登录成功!")
                        location.href="/";
                    }else if (response.data==2){
                        alert("该用户不存在");
                    }else if (response.data==3){
                        alert("密码错误!");
                    }
                })
            }
        }
    })
    //从cookie中得到用户名和密码
    let cookie=document.cookie;
    //分成多个字符串的数组
    let cookieArr=document.cookie.split(";");
    //遍历每一个Cookie
    for (let c of cookieArr){
        let arr=c.split("=");
        let key=arr[0].trim();
        let value=arr[1];
        if (key=="username"){//找到cookie中的用户名了
            v.user.username=value;
        }else if (key=="password"){//找到cookie中的密码了
            v.user.password=value;
        }
    }


</script>

</body>
</html>